Cableway carriage



UNITEDSTATEs vrrvrflau'i OFFICE, g

DAVENPORT LAWSON,ZOF ELK, CALIFORNIA, ASSIGNOR TO GOODYEAR REDWOODiCO., OF ELK, CALIFORNIA, A CORPORATION OF MAINE.

CABLE'WAY CARRIAGE.

Specification of Letters Patent.

Application ledlanuary2?, '1921. Serial No. 440,294.

` To all whom t may concern.'

'carriagefor use on a cableway, which is characterized by improved means for maintainin the proper engagement of the pulleys o the carriage with. the cable Vor cables on which the carriage operates. Another object is theprovision of a carriage embodying im roved means for lubricating the cables.` nother object is the provision of a carriage 'of exceptionally Vrugged .construction to withstand the tremendous stresses incident to its use in logging operations.

.My `invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of my invention. It is to be understood that I do not limit myself to the showing made by the said descript-ion, as I may adopt variant forms of my invention within the scope of the claims.

Referring to the drawings: Fig. 1 is a side elevation of the carriage. f Fig. 2 is an end elevation, parts' being shown in section.

The cableway carriage of my invention comprises a pair of frame plates 2 held in parallel spaced relation by bolts 3 passing through spacing blocks 4, and arranged at suitable places in the plates. Since the carriage in the present instance is designed for use on two cables, I arrange three grooved pulleys or sheaves between the plates of the frame; an upper pulley 6 for engaging the upper cable 7 and a pair of pulleys 8 and 9 for engaging the lower cable 10, these pulleys being spaced below and one on each side of the upper pulley. This arrangement gives stability to the carriage on the cables because of the wide wheel base, and prevents objectionable swinging or rocking of the carriage about its transverse axis. Each of the pulleys is fixed on a shaft` 11 projecting from each side, and these projecting ends are jour- Ilaled in bearings 12. The bearings are each provided with a flange 13 which is bolted to the frame plates of the carriage, and of course the companion bearings for each pul ley are carefully alined. The outsidel ofthe bearings is closed as shown in F ig. 2 to preventy the entrance of foreign matter and t-he escape of lubricant. Fixed in the top ofeach bearing is a grease cup 14 for supplying the journal with lubricant. It is to be notedthat the pulleys are a trile less in width than ,the space between the frame plates so that the cables cannot possibly become jammed tweenpulley and frame and naturallykvork into the grooves of the pulley after any displacement, and also that ample bearing surltace for the pulley shafts is provided byvr the bearings on the outside ofthe frame.

Means are provided for preventing engagement of the cableswith the edges ofthe frame platesl as the carriage movesoverthc cables. At each end, and in thatportion ald-4..- jacent the cables, the p1atesare apertured to`receive a roller 16 journaledfin bearing blocks 17 bolted to the plate. l As bestzseenin Fig. 2, the rollers are 4set with inneredges alined with the grooves of the pulley with which they are associated, so that the cable is directed or guided intothe pulley without frictional contact with the frame plates. Similar guide rollers 1S are arranged to guide the cable 7 into the pulley 6.

Retainingv spools 19 are rotatably mounted below and in front of each pulley 8 and 9,

and spools 21 below and on each side of pulley 6. These spools prevent displacement and tangling of the cables,especially from bouncing of the carriage. The frame plates are formed with apertures 22 for securing the lines which carry the load, and movement of the carriage. on the cables 7 and 10 is ei'ected by suitable control lines made'fast to links 23, which are secured to the carriage, one on each side, by the two lower bolts 3.

Means are provided for lubricating the cables, so that wear on them is reduced toa minimum and frictional resistance is largely eliminated. Arranged between the frame platesabove the pulley 6 is a reservoir 24 for liquid lubricant which is introduced into the reservoir through an opening, closed by the vented plug 26. A drip cock 27 1s arranged onV the reservoir so as to feed the lubricant into the groove of the pulley, from which it is transferred to the cable 7. A similar reservoir 28 is arranged" between the pulleys 8 and 9, and drips lubricant upon the cable 10. During the operation of the carratenad Febyai, 1922.

riage, lubricant is transferred to the guide Vfully lubricated,

I claim: y

l. A cableway carriage comprising spaced plates, pulleys for engaging the cable disposed between said plates, a lubricant reservoir disposedbetween said plates above the line of the cable, and nieans for feeding lubricant from said reservoir tosaid cable.

A 2. A cableway carriage comprising spaced plates, pulleys for engaging the cable arranged between said plates, a lubricant reservoir disposed between said plates andbetween said pulleys above said cable, and a drip spout in said reservoir for feedinglw bricant upon said cable, y

3. A cableway carriage comprising spaced flat plates, pulleys for engaging the cable disposed between said plates, and bearings for said pulleys arrangedon the outside of said plates.

4:. A c'ableway-carriage comprising spaced plates, alined bearings arranged on the outside of said plates, asha'ft gournaled in said bearings, and a pulleyl toil` engaging the cable fixed on said shai'tbetween'said plates, said pulley being of suchthickness as to leaveonly a working clearancebetween it and'said plates. I y

5. A cableway carriage comprising a frame, a pulley in'said frame for engaging the cable, and rollers journaled in said frame for guiding said cable into said pulley.

6. A cableway carria e comprising a frame, 'a pulley for engaging the cable journaled in said frame, and a roller journaled in said frame oneach side of said pulley on an axis lying in a plane perpendicular to the axis of said pulley.

7. A cableway carriage comprising spaced plates, a pair of alined bearings arranged on the outside of said plates at opposite ends thereof,'a shalty journaled in each pair of bearingsa pulley for engaging the cable fixed on each shaft between the plates, rollers `iournaled in saidfrarne on each side to guide said cable into 4the pulleys, and means on said frame for Vfeeding a `lubricantupon Ysaid cable.

8. A cahleway carriage for use on two cables comprising a pair: of spaced plates,

means for vfixing said plates in spacedrelation, a pulley` arranged between said plates and journaled therein for engaging one of said cables, a. pair of Vpulleys arranged between said plates and journaled therein for engaging the other of said cables, said pair of pulleys being arranged below and one on each side of said first named pulley, rollyersrjournaled in said `plates on both sides of said pulleys `for guiding said lcables into the pulleys, andmeansl on saidfraine for feeding a lubricant-upon said cables.

In testimony whereof, I have hereunto set rnyhand. l

' DAVENPoRrLAWsoN. c 

